The hottest survey of indoor air quality in cities

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2011 Yangtze River Basin urban indoor air quality survey results released

2011 Yangtze River Basin urban indoor air quality survey results released

December 8, 2011

[China paint information] after five months of careful sampling and rigorous analysis, The results of the "2011 Yangtze River Basin urban indoor air quality survey" were released yesterday after the 47 plastic recycling granulators for residents in seven cities, including Suzhou, treated the waste plastics in daily life to generate 85 questionnaires of plastic raw materials needed by enterprises and analyzed more than 1400 sets of air samples in residents' homes. The survey showed that the four major pollutants formaldehyde, benzene, toluene and xylene in the homes of these urban residents exceeded the standard to varying degrees, of which xylene exceeded the standard the most seriously, followed by toluene

recently, the topic of "PM entry threshold is also low 2.5" index has been constantly discussed, and indoor air quality, which accounts for 80% or more of people's life, has also attracted more and more attention from all walks of life. "2011 Yangtze River Basin urban indoor air quality survey" was jointly initiated by the indoor environment and health branch of the Chinese society of Environmental Sciences, the school of architecture of Tsinghua University, the school of environmental science and engineering of Peking University, climate organization and Landsea group. The survey mainly analyzes the building and indoor conditions, indoor individual subjective feelings and behavioral activity characteristics, infant or child health conditions, air quality improvement measures and other aspects, aiming to comprehensively realize the goal of the "1025" plan for the new material industry and truly restore the indoor environmental conditions and awareness of residents in the Yangtze River Basin. Seven cities including Shanghai, Nanjing, Hangzhou, Suzhou, Wuhan, Chengdu and Chongqing were surveyed

the survey report released yesterday shows that the indoor air quality of the surveyed cities is not optimistic as a whole. In terms of chemical pollution only, according to the analysis of collected air samples, the four main pollutants of formaldehyde, benzene, toluene and xylene in the homes of residents in these seven cities exceed the standard to varying degrees, among which xylene exceeds the standard the most seriously, followed by toluene, and formaldehyde and benzene exceed the standard relatively less

from the report data, it is found that urban residents are relatively concerned about indoor air quality, but most citizens have great limitations in their understanding of the sources and control methods of indoor air pollution. For example, urban respondents' attention to indoor air pollution sources is mainly focused on dust and formaldehyde, followed by mold, mites, cigarettes and air conditioning. However, their attention and even recognition to radon, semi volatile organic compounds and benzene series are still generally low, which are precisely highly toxic indoor air pollutants. In addition, the overall satisfaction of respondents in various cities with indoor air quality is generally only about 40%, which is in sharp contrast to the concern of 70% for indoor air quality. Low satisfaction reflects the poor status quo, while high attention highlights the importance of indoor air quality issues and the high expectations of the public. There is a large gap between the two

Xieyuanjian, one of the organizers of the event and vice president of Landsea group, believes that the contradiction between high attention and low awareness shown by ordinary residents may lead to the result that although everyone is willing to improve air quality, the improvement effect will be very limited. The data of this survey also shows that 70% of residents are willing to spend 50 yuan/square meter to improve the current situation of indoor air, which falls far behind the investment in ordinary household decoration. The survey expert group said that on the one hand, social guidance should be strengthened to help residents pay more attention to health-related issues; On the other hand, only when government regulations, academic research, enterprise implementation, public opinion promotion and other aspects act together, can we effectively reduce the gap between China's indoor air quality and developed countries

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